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Soil CO2, CH4 and N2O fluxes, soil and litter parameters and meteorological data from a temperate upland forest along a land inclination gradient
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Publication date
Aug 31, 2023
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Handle - http://hdl.handle.net/11304/6e0b015d-af8c-42b5-ae0c-9bbd8716bd96
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Lauren M Gillespie
Given Name: Lauren M
Family Name: Gillespie
Affiliation: Institute of Soil Research, University of Natural Resources and Life Sciences, Vienna (BOKU), Peter-5 Jordan-Straße 82, 1190, Vienna, Austria.
Nathalie Y Triches
Given Name: Nathalie Y
Family Name: Triches
Affiliation: Department of Environment, Faculty of Bioscience Engineering, Ghent University, Coupure links 653, 7 B-9000, Ghent, Belgium. Present address: Max Planck Research Institute for Biogeochemistry, Hans-8 Knöll- Straße 10, 07745, Jena, Germany
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Diego Abalos
Given Name: Diego
Family Name: Abalos
Affiliation: Department of Agroecology, iCLIMATE, Aarhus University, Blichers Allé 20, Tjele, 8830, Denmark
Peter Finke
Given Name: Peter
Family Name: Finke
Affiliation: Department of Environment, Research group of soilscape genesis, Ghent University, Coupure links 11 653, B-9000, Ghent, Belgium
Sophie Zechmeister-Boltenstern
Given Name: Sophie
Family Name: Zechmeister-Boltenstern
Affiliation: Institute of Soil Research, University of Natural Resources and Life Sciences, Vienna (BOKU), Peter-5 Jordan-Straße 82, 1190, Vienna, Austria
Stephan Glatzel
Given Name: Stephan
Family Name: Glatzel
Affiliation: University of Vienna, Department of Geography and Regional Research, Universitätsstraße 7, 1010 13 Vienna, Austria
Eugenio Diaz-Pines
Given Name: Eugenio
Family Name: Diaz-Pines
Affiliation: Institute of Soil Research, University of Natural Resources and Life Sciences, Vienna (BOKU), Peter-5 Jordan-Straße 82, 1190, Vienna, Austria
Abstract
Publication abstract: Inclination and spatial variability in soil and litter properties influence soil greenhouse gas (GHG) fluxes, and thus on-going climate change, but their relationship in forest ecosystems is poorly understood. To elucidate this, we explored the effect of inclination, distance to a stream, soil moisture, soil temperature, and other soil and litter properties on soil-atmosphere fluxes of carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O) with automated static chambers in a temperate upland forest in Eastern Austria. We hypothesised that soil CO2 emissions and CH4 uptake are higher in sloped locations with lower soil moisture content, whereas soil N2O emissions are higher in flat, wetter locations. During the measurement period, soil CO2 emissions were significantly higher on flat locations (p < 0.05), and increased with increasing soil temperature (p < 0.001) and decreasing soil moisture (p < 0.001). The soil acted as a CH4 sink, and CH4 uptake was not significantly related to inclination. However, CH4 uptake was significantly higher at locations furthest away from the stream as compared to at the stream (p < 0.001), and positively related to litter weight and soil C content (p < 0.01). N2O fluxes were significantly higher on flat locations and further away from the stream (p < 0.05) and increased with increasing soil moisture (p < 0.001), soil temperature (p < 0.001) and litter depth (p < 0.05). Overall, this study underlines the importance of inclination and the resulting soil and litter properties in predicting GHG fluxes from forest soils and therefore their potential source-sink balance.
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Jun 16, 2020 - Nov 24, 2020
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publication_state: published
community: d952913c-451e-4b5c-817e-d578dc8a4469
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